Extract text from Delphi compiled units (DCU)
To convert DCU compiled units to another format, you need Embarcadero Delphi or other Developer software.
To convert other file formats to the "Compiled Source Code" file type, you need software like Embarcadero Delphi or a similar tool.
A .dcu file is primarily a Delphi Compiled Unit created by Embarcadero Delphi. It acts as an intermediate compiled object file, generated directly from a PAS (Pascal) source code file. It contains machine code and symbol information needed by the linker to build a final EXE or DLL application.
This format has severe limitations for end-users. It is a strictly proprietary, closed binary format. The most significant disadvantage is that .dcu files are heavily tied to the specific compiler version that created them. A file compiled in Delphi 7 will trigger fatal errors if you attempt to use it in Delphi 11. They are also not human-readable and require a paid IDE license to compile. Standard online converters fail to process them because decompiling machine code back to readable source code is an extremely complex computer science problem, not a simple format shift.
Developers usually want to convert a .dcu back to its original PAS source code to recover lost logic or upgrade to a newer IDE version. While specialized decompilers (like DCU32INT) exist, they typically only extract the interface (API) while failing to recover the implementation logic, variable names, or developer comments.
Because this is a closed, proprietary compiled format, only the original software can properly read or export the data.
Convert.Guru analyzes your DCU file, detects the exact format, and lets you read the text inside.
Users also converted DCR, DPR and JDBG files.
If you want to convert DCU file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use Embarcadero Delphi or similar software from the "Compiled Object Code File" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to DCU, try Embarcadero Delphi or another comparable tool in the "Compiled Object Code File" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our DCU converter.